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The Effect Of Gender On Circulating Adipokines During Weight Loss And Weight Maintenance, Marcus A. Breden, Bryan K. Smith, Matthew P. Harris, Adam Gloekner, Brooke Burgess, Melody D. Phillips, Joshua S. Wooten

International Journal of Exercise Science: Conference Proceedings

During obesity, the altered release of adipokines, leptin and adiponectin, have been strongly associated with development of the metabolic syndrome. Treatment with weight loss has been shown to increase adiponectin, in particular high molecular weight (HMW) adiponectin, and reduce circulating leptin levels indicating an increased leptin sensitizing effect. Interestingly, a gender dichotomy has been identified with women generally possessing higher plasma concentrations of both adipokines. Weight loss effects have been well established; however, it remains to be determined how the gender differences in adiponectin and leptin will affect these adipokines during prolonged weight maintenance. PURPOSE: To identify gender differences in …

Variation In Individual Responses To Time-Restricted Feeding And Resistance Training, Grant M. Tinsley, Jeffrey S. Forsse, Grant B. Morgan, Natalie K. Butler, Annie A. Bane, Paul La Bounty, Peter Grandjean

International Journal of Exercise Science: Conference Proceedings

Time-restricted feeding (TRF) is a form of intermittent fasting which limits all caloric intake to a certain period of time each day in an attempt to reduce daily energy intake, promote weight loss, and improve health. Resistance training (RT) has been reported to increase muscular strength and improve body composition. Very limited information is available on the combination of TRF and RT. The purpose of this study was to examine the variation in individual body composition, dietary intake, and muscular performance responses to an 8-wk TRF and RT program. Healthy males (n = 20; age = 22 ± 3 y; …

The Effects Of Physical Activity On Markers Of Hepatic Lipid Metabolism During Weight Cycling, Matthew P. Harris, Andrew Seija, Rachael E. Hartke, Marcus Breden, Kaylee Poole, Joshua S. Wooten

International Journal of Exercise Science: Conference Proceedings

Non-alcoholic fatty liver disease (NAFLD) has emerged as the leading cause of liver disease and develops when the rate of hepatic triglyceride formation exceeds the rate of disposal. Weight loss is often prescribed to treat NAFLD; however, only one in six obese or overweight individuals who lose weight through diet are successful at maintaining weight loss resulting in weight regain (i.e., weight cycling).

Purpose: To determine the effect of physical activity on the prevention of hepatic steatosis and expression of lipogenic genes during weight cycling. Methods: To induce obesity, male C57BL/6 mice were fed a 60% fat diet for 10-weeks. …

The Effects Of Physical Activity On Markers Of Adipose Inflammation During Weight Cycling, Rachael E. Hartke, Matthew Harris, Marcus Breden, Kaylee E. Poole, Andrew Seija, Joshua S. Wooten

International Journal of Exercise Science: Conference Proceedings

Weight loss using diet and exercise are the main treatment strategies for obesity; however, weight loss is rarely maintained resulting in weight regain or weight cycling. Obesity is associated with chronic low-grade inflammation resulting in the release of adipokines and activation of macrophages (M1) accelerating the development of insulin resistance. In contrast, the M2 macrophage phenotype is characterized by blocking inflammatory responses and promoting tissue repair. Despite the effectiveness of exercise on preventing comorbidities of obesity during weight-loss, the influence of physical activity during weight cycling on markers of adipose inflammation remains unclear. Purpose: The purpose of this study was …

Survey Responses From “Wellness For Life” Classes: Overall Value And Barriers, Motivators, And Motives Towards Physical Activity, Morgan A. Hare, Matthew J. Garver, Charles W. Ruot, Kelsey D. Odom, Nathan W. Offutt, Josie X. Ornelas, Sarah J. Taylor, Jose A. Bolanos, Ellen E. Dees, Joe D. Bell

International Journal of Exercise Science: Conference Proceedings

Introduction: Skill-based sport activity classes were the historical trend, but greater numbers of higher education institutions now offer courses that encompass “wellness for life” concepts. The goal of these offerings is to guide students in the development of knowledge, skills, and behaviors to adopt and maintain healthful behaviors. There is a need to amass evidence of the outcomes arising from engagement in these classes. Purpose: The purpose of this work was to document outcomes from participation in a single, semester-long, university wellness for life class. Methods: Students were recruited from courses at two universities. Survey responses were collected in the …

Demonstrable Evidence Of Beneficial Physical Outcomes From University Physical Education Activity Courses, Nathan W. Offutt, Matthew J. Garver, Charles W. Ruot, Kelsey D. Odom, Morgan A. Hare, Josie X. Ornelas, Sarah J. Taylor, Jose A. Bolanos, Ellen E. Dees, Joe D. Bell

International Journal of Exercise Science: Conference Proceedings

Introduction: Engagement in physical activity (PA) is often dramatically reduced during the transition from high school into college. There appears to be more stability in PA patterns during the transition from college into post-graduate life. Consequently, researchers have highlighted the years in higher education as pivotal for shaping lasting PA habits. Sadly, there is a widespread lack of evidence regarding the outcomes from physical education activity courses (PEAC) offered on campuses of higher education. Thus, their overall value lacks validation. The purpose of this work was to offer evidence of outcomes from engagement in a single, semester-long university PEAC class. …

No Change In Perceptual Or Chronotropic Outcome When Altering Preferred Step Frequency For A Short Duration, Gloria G. Haynes, Matthew J. Garver, Jill R. Baker, Megan M. Kriger, Marlee M. Jones, Heather L. Markgraf, Janice M. Nkrumah, Briana K. Phillips

International Journal of Exercise Science: Conference Proceedings

IIntroduction: Millions of individuals incorporate jogging into their physical activity routines as a leisurely pursuit and as a way to achieve positive health outcomes. People appear to choose jogging speed and the associated step frequency on pure, natural preference. Understandably, kinesthetics are important, but another important underlying factor is metabolic cost. The purpose of this work was to investigate if preferred step frequency (at a preferred jogging pace) also minimizes perceived effort (Borg Rating of Perceived Exertion, 6-20; RPE) and chronotropic stress (heart rate; HR) during a ten-minute activity bout when compared with step frequencies altered by 5%. Methods: Recreationally-trained …

Running On Empty: A Comparison Of Marathon And Ultramarathon Race Preparation, K M. Jones, K E. Jones, J A. Smeltz, B T. Jensen, J S. Lynn

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file

High-Density Lipoprotein Antioxidant Responses To High-Intensity Interval And Steady-State Moderate-Intensity Exercise, Zacharias Papadakis, Jeffrey S. Forsse, Annie A. Bane, Taylor Kyle, Li Qian, Flor Elisa Morales Marroquín, Peter W. Grandjean

International Journal of Exercise Science: Conference Proceedings

High-intensity interval exercise (HIIE) may impart health benefits beyond what is acquired through moderate-intensity steady state exercise (SSE). Paraoxonase 1 (PON1), an antioxidant associated with high-density lipoprotein (HDL), may be altered with exercise; however, it is unclear whether HIIE provides a greater stimulus for increasing PON1 antioxidant activity than a comparable or greater amount of SSE. PURPOSE: Determine the influence of HIIE on PON1 concentration and activity relative to a comparable amount of moderate-intensity SSE and a dose that is half that of SSE. METHODS: Seventeen male participants (age 27.8 + 6.4 yr; weight 80.6 + 9.0 kg; BMI 25.1 …

Effects Of Fish Oil Supplementation On Post-Resistance Exercise Muscle Soreness In Untrained Females, Grant M. Tinsley, Joshua J. Gann, Stefan R. Huber, Paul M. La Bounty, Rodney G. Bowden, Thomas L. Andre, Paul M. Gordon, Peter W. Grandjean

International Journal of Exercise Science: Conference Proceedings

The anti-inflammatory properties of omega-3 fatty acids contained in fish oil may help alleviate symptoms of delayed onset of muscle soreness (DOMS) and improve recovery from exercise.

PURPOSE: To examine the effects of fish oil supplementation on the time-course of post-resistance exercise muscle soreness in young untrained females.

METHODS: Seventeen non-resistance trained females (age 23.6 ± 3.0 y, % fat 27.4 ± 3.2, weight 60.2 ± 9.6 kg) were randomized into one of two groups: fish oil (6 g/d; 5:1 EPA:DHA) or placebo (6 g/d corn/soy oil). After consuming the supplements for one week, participants underwent a single bout of …

The Positive Effects Of Acute Resistance Exercise On Blood Lipid Profiles In College-Aged Men, Farzana F. Alam, Jin K. Park, Neil A. Schwarz, Ashley P. Lamar, Yunsuk Koh

International Journal of Exercise Science: Conference Proceedings

Low- to moderate-intensity exercise has been widely recommended for people at any age to improve cardiovascular health due to its positive effects on blood lipids and lipoproteins. Recently, many people have been participating in not only low- to moderate-intensity, but high-intensity exercise as well in order to improve their cardiovascular health. However, it is unclear whether high-intensity exercise, particularly resistance exercise, can positively influence blood lipids and lipoproteins. Purpose: The current study examined the effects of low- and high-intensity of resistance exercise on changes in blood lipids and lipoproteins. Methods: In a randomized, cross-over design, 10 healthy recreationally resistance-trained (at …

Changes In Creatine Phosphokinase Isoenzymes After Varying Levels Of Resistance Exercise, Ashley Lamar, Yunsuk Koh, Jin K. Park, Farzana Alam

International Journal of Exercise Science: Conference Proceedings

Creatine phosphokinase (CK) isoenzymes are found in various tissues, such as skeletal muscle (CK-MM), cardiac muscle (CK-MB), and the brain (CK-BB). Elevated CK isoenzymes indicate damage or injury to specific tissue. Using CK isoenzymes as a marker in order to indicate muscle damage as a result of different degrees of resistance exercise has not been clearly examined. Purpose: To determine the changes in CK isoenzymes following resistance exercise at different intensities. Methods: Ten healthy recreationally resistance-trained (at least 3 - 6 days per week for a minimum of one year) men participated in the study. The participants performed …

Pre-Prandial Vinegar Ingestion Improves Two-Hour Glucose Control In Older, Type Ii Diabetics More Than Post-Prandial Walking, Sarah J. Taylor, Matthew J. Garver, Anna E. Ciufo, Taylor G. Flowers, Chase M. Harbach, Austin A. Ray, Cory M. Scheadler

International Journal of Exercise Science: Conference Proceedings

Background: Exercise engagement benefits diabetic patients through an insulin-like effect on muscle. Literature indicates that vinegar consumption may lower blood glucose levels. It is not currently clarified whether a relative amount of vinegar ingestion or a walking bout is more effective at controlling glucose in older, Type II diabetics during the acute phase following a meal. Purpose: The aim was to directly compare the impact of preferred-pace walking (15 min, postprandial) versus ingestion of a relative quantity of vinegar (0.3 g/kg) on two-hour glucose control. Methods: The two arms of the trial were completed in a randomized, …

Role Of High-Intensity Resistance Exercise In Vascular Inflammation In Recreationally Trained Men, Jin K. Park, Neil Schwarz, Darryn Willoughby, Yunsuk Koh

International Journal of Exercise Science: Conference Proceedings

Soluble intracellular adhesion molecule-1 (sICAM-1) and soluble vascular cell adhesion molecule-1 (sVCAM-1) are known as vascular inflammatory markers and play a key role in the development of atherosclerosis. Although low to moderate intensity exercise may positively influence inflammatory markers, the role of high-intensity resistance exercise in sICAM-1 and sVCAM-1 has not been fully examined. The current study examined the effects of resistance exercise at different intensities (low vs. high) on acute responses of sICAM-1 and sVCAM-1. In a randomized, cross-over design, 10 recreationally trained (resistance-trained 3 to 6 days per week for at least one year) college-aged men performed a …

Influence Of Decompression Rate On Hemodynamic Compensation To Continuous Lower Body Negative Pressure, Edward J. St. John Jr., William H. Cooke

International Journal of Exercise Science: Conference Proceedings

We applied lower body negative pressure (LBNP) continuously, at three decompression rates, in an attempt to simulate uncontrolled hemorrhage as might be experienced by victims of traumatic injury. The purpose of our study was to determine whether hemodynamic compensations to simulated hemorrhage depend more on the magnitude, or the rate of change in pressure applied. Forty five (45) young, healthy subjects participated. We recorded the electrocardiogram, beat-to-beat arterial pressure (finger photoplethysmography), and measured cardiac output (inert gas rebreathing to calculate stroke volume) during continuous LBNP applied at three different decompression rates (n = 15 subjects for each rate; slow = …

Time-Clamped, Rpe-Matched Treadmill Activity And Interactive Video Game Dancing Differ In Step Count But Not Heart Rate Response, Cara D. Loveland, Matthew J. Garver, Haley E. Grisham, Elizabeth M. Knight

International Journal of Exercise Science: Conference Proceedings

Background: Participation in regular moderate or vigorous physical activity (MVPA) results in numerous health benefits. Task enjoyment is a known antecedent and promoter of regular activity engagement. Participation in interactive video gaming has increased in recent years. Purpose: The aims of the present investigation were to: 1) determine heart rate (HR) and step count outcomes of time-clamped and RPE-matched interactive video game dancing (VGD) and treadmill activity; 2) characterize the suitability of VGD to achieve MVPA designation; and, 3) investigate step count outcomes recorded by pedometry and accelerometry. Methods: Subjects underwent three testing sessions with the latter …

Nutritional, Bone, And Physical Fitness States Of Jockeys In Chronic Repetition Of Short-Term Weight Loss, Soeun Jeon, Kyungho Cho, Gina Ok, Hyon Park

International Journal of Exercise Science: Conference Proceedings

Professional jockeys are required to fit their weight, mainly weight loss, for two game days every weekend during racing season which usually lasts 10 months a year in Korea. The repetitive routine weight loss protocol is performed for 4 to 5 days a week include two game days. This situation would have brought some negative effects on the professional jockeys' overall health and physical condition with the relation of their performance. The purpose of the present study was: 1) to examine the weight loss habits of pro-jockeys, and 2) effects of chronic short-term weight loss on nutritional status, bone health, …

The Impact Of Simulated Altitude On Selected Elements Of Running Performance, Taylor G. Flowers, Matthew J. Garver, Cory M. Scheadler, Sarah J. Taylor, Logan M. Smith, Chase M. Harbach, Heather X. Johnson

International Journal of Exercise Science: Conference Proceedings

Background: Simulating altitude at sea level is increasingly more popular among recreationally-trained athletes across the sports spectrum. The AltO2Lab is a commercially-available, handheld, rebreathing apparatus purported to simulate altitude. Currently, there is an overall dearth of evidence regarding the efficacy of the device. Purpose: The goal of this study was to add evidence supporting or challenging the effectiveness of the device to improve selected running performance-related variables and to investigate the time-course of changes should benefits be evidenced. Methods: The 37-day protocol included familiarization, baseline, and 2 follow-up visits during which time hematological (hematocrit and lactate), physiological …

The Need For Reporting Metabolic Sampling Interval In Publication: An Example Using Maximal Vo2 Values And Running Economy, Chase M. Harbach, Matthew J. Garver, Cory M. Scheadler, Sarah J. Taylor, Logan M. Smith, Taylor G. Flowers, Heather X. Johnston

International Journal of Exercise Science: Conference Proceedings

Background: Knowledge of metabolic outcomes, such as maximal oxygen consumption (VO₂) or running economy, has wide-ranging application. Metabolic outcomes are widely reported in literature yet the metabolic sampling interval (example: breath-by-breath, 30-sec average) utilized for collection is rarely ever stated. Purpose: The purposes of the present investigation were to probe the potential discrepancies created when analyzing running economy and VO_2max raw metabolic data with four different metabolic sampling intervals. Methods: Five recreationally-active and endurance-trained subjects were included in the present analysis and four metabolic sampling intervals were analyzed: 30-sec average, 20-sec average, 8-breath, and …

Consumption Of A High-Fat Meal Increased Monocyte Adhesion Molecule Expression And Oxldl Phagocytosis: Implications For Cardiovascular Disease Risk?, Andrea L. Henning, Jill N. Sampson, Adam S. Venable, Eric A. Prado, David W. Hill, Jakob L. Vingren, Brian K. Mcfarlin

International Journal of Exercise Science: Conference Proceedings

Macrophage-derived foam cells are the predominant component of arterial plaques in the early stages of atherosclerosis. The deposition of arterial plaques is effected by several factors that are influenced by a person’s daily nutritional habits. One factor that poses a major risk for plaque development is high levels of plasma LDL resulting from the consumption of a high-fat meal. In order to understand how an individuals’ diet effects arterial plaque deposition via the process of foam cell formation, we measured the acute response in circulating monocyte activity after consuming a high-fat meal. Samples were acquired on a FlowSight (EMD Millipore) …

C.Elegans As A Diabetes & Ischemia Model: Identification Of Genetic And Cellular Changes That Modulate The Survival Of Hyperglycemia And Oxygen-Deprivation, Anastacia M. Garcia, Mary L. Ladage, Brian K. Mcfarlin, Rajeev K. Azad, Pamela A. Padilla

International Journal of Exercise Science: Conference Proceedings

Diet represents an exogenous influence that often yields colossal effects on an individual’s phenotype, physiology, long-term health and disease risk. The overconsumption of dietary sugars for example, has contributed to significant increases in obesity and type 2 diabetes, health issues that are costly both in terms of dollars and human life. Additionally, individuals with these conditions have compromised oxygen delivery and thus, an increased vulnerability to other oxygen-deprivation related disease states, including cardiovascular disease, ischemic strokes, vascular and coronary diseases and myocardial infarction. While human and other mammalian studies have shown that individuals with type 2 diabetes have a worse …

Consumption Of A High-Fat Meal Alters Post-Prandial Sirt Mrna Expression In Blood Leukocytes, Jill N. Sampson, Andrea L. Henning, Eric A. Prado, Adam Venable, Pamela Padilla, Brian K. Mcfarlin

International Journal of Exercise Science: Conference Proceedings

Introduction. Sirtuins (SIRT) are protein deacetylases, hypothesized to regulate the transcription of various genes involved in the prevention of atherogenesis and diet induced obesity. Previous research from our laboratory has demonstrated that consumption of a single, high-fat meal increases various CVD risk factors for up to 5-h post-prandial. Given the importance of SIRT to metabolic disorders, it is reasonable to speculate that a single, high-fat meal also disrupts SIRT. Methods. The purpose of this study was to determine the effect of a high-fat meal (75% of daily kcals & 80% of daily fat needs), on SIRT mRNA expression in blood …

Effects Of Acute Cold Exposure On Plasma Biomarkers Associated With Cardiovascular Disease Risk, Michael A. Levi, Jeremy Garcia, Steven Stelly, Donovan Fogt

International Journal of Exercise Science: Conference Proceedings

Background and Aims: The underlying cause of the majority of the cases of CVD is atherosclerosis, which is a condition initiated and progressed by chronic inflammation and hyperlipidemia. We are interested in evaluating the efficacy of cold-exposure to increase shivering- and non-shivering thermogenesis energy expenditure (RMR) as a non-pharmaceutical weight loss tool analogous to low intensity exercise. Naturally, we are concurrently evaluating the possible effects of cold exposure on risk factors associated with CVD risk. Inflammatory cytokines and lipid mediators are used as biomarkers for CVD risk. This proposed study aims to measure cardiovascular inflammatory and lipid biomarkers to expand …

Effects Of Nutrition Education On Dietary Intake Quality And Nutrition Knowledge In Professional Soccer Players – A Pilot Study, Brittany Wise, Randahl Capurro, Donovan Fogt

International Journal of Exercise Science: Conference Proceedings

Background and Aims: Nutrition is an important factor for optimal performance of professional athletes. Several studies have demonstrated that elite athletes, especially soccer players, don’t eat enough or a high quality diet. Research shows that a diet with 65-70% of calories from carbohydrates, 20-35% calories from fat and approximately 12% of calories from protein out of an approximate 5,000 kcal diet will show improvements in performance of athletes training at high intensities. This pilot study aimed to test the impact of a targeted nutrition education program on dietary intake quality and nutrition knowledge in professional soccer players.

Methods: We initially …

Exercise Attenuated Plasma Oxidized Low-Density Lipoprotein And Myeloperoxidase, Jin K. Park, Yunsuk Koh

International Journal of Exercise Science: Conference Proceedings

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Effect Of Omega-3 Fatty Acids On Lipoprotein Profile And Particle Size In Hispanic Women, Sarah E. Deemer, Vic Ben-Ezra, Matthew S. Hickey, George A. King, Christopher L. Melby

International Journal of Exercise Science: Conference Proceedings

The effect of increased Ω3 fatty acids on lipoprotein sub-fractions has not been well studied in Hispanic women, a group with a high prevalence of dyslipidemia and metabolic syndrome. The purpose of this randomized, placebo-controlled trial was to examine the effect of a 90-day (90D) combined EPA+DHA supplementation on lipoprotein profiles of Hispanic women. Twenty-seven non-diabetic women were randomly assigned to the Ω3 group (n=17, 1.9 g/day EPA+DHA) or the placebo group (n=10, 2 g/day oleic acid). At baseline (0D) and 90D a fasting blood sample was drawn for determination of lipoprotein profile and lipoprotein particle sub-fractions. For the Ω3 …

Vaporized Nicotine Inhalation Increases Arterial Pressure In Both Supine And 70o Head-Up Positions, Colin K. Dowling, Anusheela Pokhrel, Caroline A. Rickards, Donovan L. Fogt, William H. Cooke

International Journal of Exercise Science: Conference Proceedings

ABSTRACT

Electronic cigarettes (e-cigs) are popular with smokers looking for a healthier alternative to tobacco cigarettes. E-cigs utilize a battery, activated on inhalation, to heat propylene glycol-suspended nicotine which is inhaled as vapor, and which does not include harmful poisons found in conventional cigarettes. Although the health claims of e-cigs continue to be debated, the effects of nicotine delivered as vapor on the cardiovascular system have not been studied. Because nicotine is a sympathomemetic agent, we tested the hypothesis that e-cigs would increase arterial pressure and protect against challenges associated with upright posture. Ten non-smoking subjects (5 male) participated in …

Energy Expenditure Following Acute Cold Exposure, Steven P. Stelly, Danielle Bravo, Natalie Hines, Loren Koehler, Michael Levi, Donovan L. Fogt

International Journal of Exercise Science: Conference Proceedings

TACSM Abstract -

Energy Expenditure following Acute Cold Exposure

Stelly S, Bravo D, Hines N, Koehler L, Levi M and Fogt D

Exercise Biochemistry & Metabolism Laboratory; Department of Kinesiology, Health & Nutrition; The University of Texas at San Antonio; San Antonio, TX

Category: Masters

Advisor / Mentor: Fogt, Donovan ([email protected])

ABSTRACT

Whole body energy expenditure (i.e., RMR) increases during acute cold exposure. Whether this increase in energy expenditure persists in the post-cold term in humans due to non-shivering thermogenesis has not yet been evaluated. Therefore we tested the hypothesis that RMR would be different directly following acute cold exposure. …

Effects Of Vaporized Nicotine On Resting Metabolic Rate And Physical Work Capacity, Michael A. Levi, Steven P. Stelly, Natalie Hines, Loren Koehler, Aida Nasirian, Javier Torres, Marsyl Cotton, William H. Cooke, Donovan L. Fogt, Caroline A. Rickards

International Journal of Exercise Science: Conference Proceedings

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Increase In Mitochondrial Content After Electrical Pulse Stimulation Is Dependent On Duration Of Stimulation, Daniel A. Conde, Jeffrey D. Covington, Cecilia A. Gamboa, George A. King, Arild C. Rustan, Sudip Bajpeyi

International Journal of Exercise Science: Conference Proceedings

Increase in Mitochondrial content after Electrical Pulse Stimulation is dependent on duration of stimulation

Daniel Conde B.S.¹, Jeffrey D. Covington Ph.D.², Cecilia Gamboa³ George A. King Ph.D.¹, Arild C. Rustan Ph.D.⁴, Sudip Bajpeyi Ph.D.¹.

¹ Department of Kinesiology, University of Texas at El Paso, TX; ²Louisiana State University Health Sciences Center, New Orleans, LA; ³Clinical Laboratory Sciences, University of Texas at El Paso; ⁴Department of Pharmaceutical Biosciences, School of Pharmacy, University of Oslo, Oslo, Norway^.

Skeletal Muscle Metabolism Laboratory; Kinesiology; University of Texas at El …